diff --git a/module/Core/test/ShortUrl/Helper/ShortUrlTitleResolutionHelperTest.php b/module/Core/test/ShortUrl/Helper/ShortUrlTitleResolutionHelperTest.php
index b2cbfd85..61618eda 100644
--- a/module/Core/test/ShortUrl/Helper/ShortUrlTitleResolutionHelperTest.php
+++ b/module/Core/test/ShortUrl/Helper/ShortUrlTitleResolutionHelperTest.php
@@ -4,24 +4,21 @@ declare(strict_types=1);
 
 namespace ShlinkioTest\Shlink\Core\ShortUrl\Helper;
 
+use PHPUnit\Framework\MockObject\MockObject;
 use PHPUnit\Framework\TestCase;
-use Prophecy\PhpUnit\ProphecyTrait;
-use Prophecy\Prophecy\ObjectProphecy;
 use Shlinkio\Shlink\Core\ShortUrl\Helper\ShortUrlTitleResolutionHelper;
 use Shlinkio\Shlink\Core\ShortUrl\Model\ShortUrlCreation;
 use Shlinkio\Shlink\Core\Util\UrlValidatorInterface;
 
 class ShortUrlTitleResolutionHelperTest extends TestCase
 {
-    use ProphecyTrait;
-
     private ShortUrlTitleResolutionHelper $helper;
-    private ObjectProphecy $urlValidator;
+    private MockObject $urlValidator;
 
     protected function setUp(): void
     {
-        $this->urlValidator = $this->prophesize(UrlValidatorInterface::class);
-        $this->helper = new ShortUrlTitleResolutionHelper($this->urlValidator->reveal());
+        $this->urlValidator = $this->createMock(UrlValidatorInterface::class);
+        $this->helper = new ShortUrlTitleResolutionHelper($this->urlValidator);
     }
 
     /**
@@ -31,14 +28,18 @@ class ShortUrlTitleResolutionHelperTest extends TestCase
     public function urlIsProperlyShortened(?string $title, int $validateWithTitleCallsNum, int $validateCallsNum): void
     {
         $longUrl = 'http://foobar.com/12345/hello?foo=bar';
+        $this->urlValidator->expects($this->exactly($validateWithTitleCallsNum))->method('validateUrlWithTitle')->with(
+            $this->equalTo($longUrl),
+            $this->isFalse(),
+        );
+        $this->urlValidator->expects($this->exactly($validateCallsNum))->method('validateUrl')->with(
+            $this->equalTo($longUrl),
+            $this->isFalse(),
+        );
+
         $this->helper->processTitleAndValidateUrl(
             ShortUrlCreation::fromRawData(['longUrl' => $longUrl, 'title' => $title]),
         );
-
-        $this->urlValidator->validateUrlWithTitle($longUrl, false)->shouldHaveBeenCalledTimes(
-            $validateWithTitleCallsNum,
-        );
-        $this->urlValidator->validateUrl($longUrl, false)->shouldHaveBeenCalledTimes($validateCallsNum);
     }
 
     public function provideTitles(): iterable